﻿/* 
    jQuery formatCurrency plugin... 
    see http://code.google.com/p/jquery-formatcurrency/
    symbol: "" here you can input $ or ￥ (eg: symbol: "$")
*/
(function ($) {
    $.formatCurrency = {}; $.formatCurrency.regions = []; $.formatCurrency.regions[""] = { symbol: "", positiveFormat: "%s%n", negativeFormat: "(%s%n)", decimalSymbol: ".", digitGroupSymbol: ",", groupDigits: true };
    $.fn.formatCurrency = function (destination, settings) {
        if (arguments.length == 1 && typeof destination !== "string") {
            settings = destination; destination = false
        } var defaults = { name: "formatCurrency", colorize: false, region: "", global: true, roundToDecimalPlace: 2, eventOnDecimalsEntered: false }; defaults = $.extend(defaults, $.formatCurrency.regions[""]);
        settings = $.extend(defaults, settings); if (settings.region.length > 0) { settings = $.extend(settings, getRegionOrCulture(settings.region)) } settings.regex = generateRegex(settings);
        return this.each(function () {
            $this = $(this); var num = "0"; num = $this[$this.is("input, select, textarea") ? "val" : "html"](); if (num.search("\\(") >= 0) {
                num = "-" + num
            } if (num === "" || (num === "-" && settings.roundToDecimalPlace === -1)) { return } if (isNaN(num)) {
                num = num.replace(settings.regex, ""); if (num === "" || (num === "-" && settings.roundToDecimalPlace === -1)) {
                    return
                } if (settings.decimalSymbol != ".") { num = num.replace(settings.decimalSymbol, ".") } if (isNaN(num)) { num = "0" }
            } var numParts = String(num).split("."); var isPositive = (num == Math.abs(num));
            var hasDecimals = (numParts.length > 1); var decimals = (hasDecimals ? numParts[1].toString() : "0"); var originalDecimals = decimals; num = Math.abs(numParts[0]);
            num = isNaN(num) ? 0 : num; if (settings.roundToDecimalPlace >= 0) {
                decimals = parseFloat("1." + decimals); decimals = decimals.toFixed(settings.roundToDecimalPlace);
                if (decimals.substring(0, 1) == "2") { num = Number(num) + 1 } decimals = decimals.substring(2)
            } num = String(num); if (settings.groupDigits) {
                for (var i = 0; i < Math.floor((num.length - (1 + i)) / 3) ;
                i++) { num = num.substring(0, num.length - (4 * i + 3)) + settings.digitGroupSymbol + num.substring(num.length - (4 * i + 3)) }
            } if ((hasDecimals && settings.roundToDecimalPlace == -1) || settings.roundToDecimalPlace > 0) {
                num += settings.decimalSymbol + decimals
            } var format = isPositive ? settings.positiveFormat : settings.negativeFormat; var money = format.replace(/%s/g, settings.symbol); money = money.replace(/%n/g, num);
            var $destination = $([]); if (!destination) { $destination = $this } else { $destination = $(destination) } $destination[$destination.is("input, select, textarea") ? "val" : "html"](money);
            if (hasDecimals && settings.eventOnDecimalsEntered && originalDecimals.length > settings.roundToDecimalPlace) {
                $destination.trigger("decimalsEntered", originalDecimals)
            } if (settings.colorize) { $destination.css("color", isPositive ? "black" : "red") }
        })
    }; $.fn.toNumber = function (settings) {
        var defaults = $.extend({ name: "toNumber", region: "", global: true }, $.formatCurrency.regions[""]);
        settings = jQuery.extend(defaults, settings); if (settings.region.length > 0) { settings = $.extend(settings, getRegionOrCulture(settings.region)) } settings.regex = generateRegex(settings);
        return this.each(function () {
            var method = $(this).is("input, select, textarea") ? "val" : "html"; $(this)[method]($(this)[method]().replace("(", "(-").replace(settings.regex, ""))
        })
    }; $.fn.asNumber = function (settings) {
        var defaults = $.extend({ name: "asNumber", region: "", parse: true, parseType: "Float", global: true }, $.formatCurrency.regions[""]);
        settings = jQuery.extend(defaults, settings); if (settings.region.length > 0) { settings = $.extend(settings, getRegionOrCulture(settings.region)) } settings.regex = generateRegex(settings);
        settings.parseType = validateParseType(settings.parseType); var method = $(this).is("input, select, textarea") ? "val" : "html"; var num = $(this)[method]();
        num = num ? num : ""; num = num.replace("(", "(-"); num = num.replace(settings.regex, ""); if (!settings.parse) { return num } if (num.length == 0) { num = "0" } if (settings.decimalSymbol != ".") {
            num = num.replace(settings.decimalSymbol, ".")
        } return window["parse" + settings.parseType](num)
    }; function getRegionOrCulture(region) {
        var regionInfo = $.formatCurrency.regions[region]; if (regionInfo) {
            return regionInfo
        } else { if (/(\w+)-(\w+)/g.test(region)) { var culture = region.replace(/(\w+)-(\w+)/g, "$1"); return $.formatCurrency.regions[culture] } } return null
    } function validateParseType(parseType) {
        switch (parseType.toLowerCase()) {
            case "int": return "Int";
            case "float": return "Float"; default: throw "invalid parseType"
        }
    } function generateRegex(settings) {
        if (settings.symbol === "") {
            return new RegExp("[^\\d" + settings.decimalSymbol + "-]", "g")
        } else { var symbol = settings.symbol.replace("$", "\\$").replace(".", "\\."); return new RegExp(symbol + "|[^\\d" + settings.decimalSymbol + "-]", "g") }
    }
})(jQuery);

// JavaScript I wrote to limit what types of input are allowed to be keyed into a textbox 
var allowedSpecialCharKeyCodes = [46, 8, 37, 39, 35, 36, 9];
var numberKeyCodes = [44, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105];
var commaKeyCode = [188];
var decimalKeyCode = [190, 110];

function numbersOnly(event) {
    var legalKeyCode =
        (!event.shiftKey && !event.ctrlKey && !event.altKey)
            &&
        (jQuery.inArray(event.keyCode, allowedSpecialCharKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, numberKeyCodes) >= 0);

    if (legalKeyCode === false)
        event.preventDefault();
}

function numbersAndCommasOnly(event) {
    var legalKeyCode =
        (!event.shiftKey && !event.ctrlKey && !event.altKey)
            &&
        (jQuery.inArray(event.keyCode, allowedSpecialCharKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, numberKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, commaKeyCode) >= 0);

    if (legalKeyCode === false)
        event.preventDefault();
}

function decimalsOnly(event) {
    var legalKeyCode =
        (!event.shiftKey && !event.ctrlKey && !event.altKey)
            &&
        (jQuery.inArray(event.keyCode, allowedSpecialCharKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, numberKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, commaKeyCode) >= 0
            ||
        jQuery.inArray(event.keyCode, decimalKeyCode) >= 0);

    if (legalKeyCode === false)
        event.preventDefault();
}

function currenciesOnly(event) {
    var legalKeyCode =
        (!event.shiftKey && !event.ctrlKey && !event.altKey)
            &&
        (jQuery.inArray(event.keyCode, allowedSpecialCharKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, numberKeyCodes) >= 0
            ||
        jQuery.inArray(event.keyCode, commaKeyCode) >= 0
            ||
        jQuery.inArray(event.keyCode, decimalKeyCode) >= 0);

    // Allow for $
    if (!legalKeyCode && event.shiftKey && event.keyCode == 52)
        legalKeyCode = true;

    if (legalKeyCode === false)
        event.preventDefault();
}